A segmented track and coil combined position break type transmitter

Abstract

This invention discloses a segmented track and coil combined position-disconnect type transmitter, including a positive track, a drive coil, a negative track, an intermediate segmented track, an insulated track, a coil negative busbar, a coil positive busbar, and an armature. This invention provides a segmented track structure that allows the armature to act as a conductor during its initial movement, connecting the positive track and the coil, enabling the coil to generate a magnetic field that drives the armature forward. Once the armature passes the center section of the coil, the track is cut off, meaning the armature no longer conducts between the positive track and the coil, thus eliminating the reverse electromagnetic force. This transmitter allows a reluctance coil transmitter to exert a forward pulling force on the armature only, without generating a pulling force in the reverse direction, effectively improving armature speed and electromagnetic transmission efficiency.

Description

Technical Field

[0001] This invention relates to the field of electromagnetic launch technology, and in particular to a segmented track and coil combined position-disconnect type launcher. Background Technology

[0002] Electromagnetic launch is a technology that uses electromagnetic fields and high currents to generate electromagnetic force, propelling an armature and a carrier at high speeds. Compared to conventional gunpowder launch methods, electromagnetic launch features higher initial projectile velocities and greater power. Currently, common electromagnetic launchers are mainly of two types: rail-mounted and coil-mounted. Rail-mounted electromagnetic launchers consist primarily of conductive rails and armatures between them. A large current flowing through the rails generates an electromagnetic field, which interacts with the current within the armature to create an electromagnetic force, propelling the armature and its load at high speed. Coil-mounted electromagnetic launchers generally consist of multiple coils. A large current flowing through the coils generates a strong magnetic field that attracts the ferromagnetic armature, or the changing magnetic field within the coils induces eddy currents in the armature, driving its movement. Rail-mounted launchers have a simple structure but relatively low launch efficiency. However, due to the ability to carry large currents, they can achieve higher initial velocities, albeit with smaller launch masses. Coil-mounted launchers have a complex structure but high launch efficiency. However, when the current is too high, the coils are easily damaged, and at high speeds, the armature's transit time through the coil is short, requiring precise control of the power switch. Therefore, coil transmitters are suitable for situations involving large mass and low speed.

[0003] To address the challenges of controlling the switching of coil-type transmitters during high-speed armature movement and the relatively low initial velocity of coil-type transmitters, this invention presents a novel transmitter structure that combines the advantages of both track-type and coil-type transmitters. Summary of the Invention

[0004] The purpose of this invention is to provide a segmented track and coil combined position-disconnect type transmitter.

[0005] The technical solution to achieve the purpose of this invention is as follows: a segmented track and coil combined position-breaking transmitter, including a positive track, a drive coil, a negative track, an intermediate segmented track, an insulated track, a coil negative busbar, a coil positive busbar, and an armature; the positive track is connected to one side of the armature, and the other side of the armature is connected to the intermediate segmented track, so that current can flow from the positive track through the armature into the intermediate segmented track; after flowing into the intermediate segmented track, the current flows into the drive coil through the coil positive busbar, and then flows into the coil negative busbar through the drive coil. The coil negative busbar is connected to the negative track, and the current flows into the negative track through the coil negative busbar; the drive coil has a hollow structure in the middle, which allows the armature to move along the drive coil axis.

[0006] Compared with the prior art, the significant advantages of the present invention are:

[0007] (1) This invention features a segmented track, the main purpose of which is to form a conductive circuit through the track, armature, and coil. The continuity of the coil is determined by the position of the track. When the track is a conductor, the circuit current is continuous, and the coil can generate a strong magnetic field to drive the armature. When the armature moves to a position unfavorable for acceleration, the track becomes an insulating material, the circuit is not continuous, and the coil cannot generate a strong magnetic field, preventing the coil from adversely affecting the armature's movement. Compared with existing technologies, this invention does not use sensors to measure the armature's position to determine whether the circuit is continuous; instead, it directly determines whether the circuit is continuous based on the armature's own movement position. This results in a simpler conduction method and higher transmission efficiency.

[0008] (2) The present invention is designed with a drive coil, the main purpose of which is to use the current to form a strong magnetic field. If the armature is made of ferromagnetic material, it can attract the armature to move forward. Alternatively, eddy currents can be generated in the armature, and the interaction with the eddy currents can generate a large electromagnetic force, driving the armature to slide along the track. At the same time, the armature itself will also conduct current, which will interact with the current in the track to generate a forward electromagnetic force, thereby further increasing the launch speed. Attached Figure Description

[0009] Figure 1 A schematic diagram of a segmented track and coil combined position-disconnect type transmitter provided by the present invention.

[0010] Figure 2 A schematic diagram of the driving coil structure provided by the present invention.

[0011] Figure 3 A schematic diagram of the driving coil structure provided by the present invention.

[0012] Figure 4 A schematic diagram of the rear cross-section provided by the present invention.

[0013] Figure 5 A schematic diagram of a transmitter with an armature provided by the present invention.

[0014] Wherein, 1—positive track; 2—drive coil; 3—negative track; 4—intermediate segment track; 5—insulated track; 6—coil negative busbar; 7—coil positive busbar; 8—armature. Detailed Implementation

[0015] Combination Figures 1-5A segmented track and coil combined position-disconnect type transmitter structure includes a positive track 1, a drive coil 2, a negative track 3, an intermediate segmented track 4, an insulated track 5, a coil negative busbar 6, a coil positive busbar 7, and an armature 8. The positive track 1 is connected to one side of the armature 8, and the other side of the armature 8 is connected to the intermediate segmented track 4, so that current can flow from the positive track 1 through the armature 8 into the intermediate segmented track 4. After the current flows into the intermediate segmented track 4, it flows into the drive coil 2 through the coil positive busbar 7, and then into the coil negative busbar 6 through the drive coil 2. The coil negative busbar 6 is connected to the negative track 3, and the current flows into the negative track 3 through the coil negative busbar 6.

[0016] Furthermore, the positive pole track 1, armature 8, and intermediate segment track 4 are conductors. The armature 8 is in contact with both the positive pole track 1 and the intermediate segment track 4, and can slide on the surfaces of the positive pole track 1 and the intermediate segment track 4. Current flows into the armature 8 through the positive pole track 1, and then flows into the intermediate segment track 4 from the armature 8. Alternatively, the circuit can be composed of more conductors to conduct current without affecting its function.

[0017] Furthermore, the positive busbar 7, drive coil 2, negative busbar 6, and negative track 3 are conductors made of conductive metallic material. After the current passes through the intermediate segmented track 4, it flows into the positive busbar 7. The positive busbar 7 is connected to the drive coil 2, so the current then enters the drive coil 2. After that, the current flows into the negative track 3 through the negative busbar 6. Alternatively, the circuit can be composed of more conductors to conduct current without affecting its function.

[0018] Furthermore, the driving coil is a coil wound with one set of wires; or, the coil wound with multiple sets of wires is used to conduct current.

[0019] Furthermore, the drive coil has a hollow structure in the middle, allowing the armature to slide along the track within it; or, the armature is located outside the drive coil and moves along the coil axis without affecting its function.

[0020] Furthermore, the armature is made of a metallic material, which can induce eddy currents inside; or the armature is made of a ferromagnetic material, which can be attracted by a magnetic field.

[0021] Furthermore, the drive coil can generate a strong electromagnetic field, inducing eddy currents within the armature, and interacting with these eddy currents to generate an electromagnetic force, driving the armature to move; the strong electromagnetic field generated by the drive coil can also attract the armature made of ferromagnetic material, driving its movement. The number of drive coils 2 can be increased or decreased as needed; a single drive coil 2 can drive the armature 8 to move. Multiple drive coils 2 can increase the speed at which the armature 8 moves.

[0022] Furthermore, when the armature contacts the intermediate segmented track, it can conduct a circuit, allowing current to enter the coil. When the armature moves to the position of the insulated track, the insulated track is made of insulating material and cannot conduct the original circuit, preventing current from entering the coil; or allowing a small amount of current to enter the coil, significantly reducing the magnetic field generated by the coil.

[0023] The conductive circuit segment of the intermediate segment track 4 will be broken in the middle of the drive coil 2, so that when the armature 8 moves to the middle of the drive coil 2, it cannot continue to conduct the positive pole track 1 and the intermediate segment track 4, thus the drive coil 2 cannot continue to form a strong magnetic field, which will generate a reverse pulling force in the armature 8.

[0024] When the armature 8 moves to the center of the coil, the intermediate segmented track 4 is replaced by the insulated track 5. The insulated track 5 is made of insulating material and cannot conduct current. As a result, the current that originally passed through the armature 8 cannot flow into the drive coil 2 through the insulated track 5, thus forming an open circuit.

[0025] The intermediate segment track 4 and the positive pole track 1 are both located inside the drive coil 2. Alternatively, the intermediate segment track 4 and the positive pole track 1 are both located outside the drive coil 2.

[0026] The intermediate segment track 4 is located at one end of the drive coil 2, and its length extending into the drive coil 2 is less than the length of the drive coil 2.

[0027] Positive rail 1 is connected to the positive terminal of the external power supply, and negative rail 3 is connected to the negative terminal of the external power supply. Alternatively, positive rail 1 is connected to the negative terminal of the external power supply, and negative rail 3 is connected to the positive terminal of the external power supply.

[0028] This invention provides a segmented track and coil combined position-breaking transmitter structure. When the armature is located on the conductor track, the conductor track, armature, and drive coil form a conductive circuit. When a large current is applied to the drive coil, a strong magnetic field is generated. Simultaneously, due to electromagnetic induction, eddy currents are generated inside the armature. The strong magnetic field interacts with the eddy currents inside the armature to generate a large electromagnetic force, driving the armature forward. Alternatively, if the armature is made of a ferromagnetic material, it can be attracted and moved in the strong magnetic field. When the armature is located on the insulated track, the circuit is not conductive, and the drive coil cannot generate a magnetic field, preventing the drive coil from generating a backward electromagnetic force in the armature.

[0029] The present invention is designed with the positive pole track, armature, and intermediate segment track as conductors. The armature is in contact with both the positive pole track and the intermediate segment track, and the armature can slide between the positive pole track and the intermediate segment track. When the armature is located between the positive pole track and the intermediate segment track, current can flow into the armature through the positive pole track, and then flow from the armature into the intermediate segment track. The armature here plays the role of conducting current. At the same time, the current in the positive pole track and the intermediate segment track will form an electromagnetic field at the position of the armature, which interacts with the current in the armature to generate an electromagnetic force that propels the armature forward.

[0030] The intermediate segment track is connected to the positive busbar of the coil, which conducts the current in the intermediate segment track to the drive coil. The drive coil is a multi-turn structure made of wire, with one end of the wire connected to the positive busbar and the other end connected to the negative busbar. Therefore, the current is conducted through the coil to the negative busbar.

[0031] The negative busbar of the coil is connected to the negative rail, and the current flows back to the power source from the negative rail. It can be seen that the positive terminal of the power source is connected to the positive rail, and the negative terminal is connected to the negative rail, thus forming a conductive loop. Alternatively, the positive terminal of the power source can be connected to the negative rail, and vice versa, without affecting the principle of this conductive loop.

[0032] When current is applied to the drive coil, it generates a strong magnetic field. This strong magnetic field induces a current in the armature, and the interaction between the strong magnetic field and the induced current produces an electromagnetic force that drives the armature forward. Alternatively, if the armature is made of a ferromagnetic material, the strong magnetic field generated by the drive coil can attract the armature to move forward.

[0033] The intermediate segment rails are insulated from each other. The function of the insulated rails is to ensure that the current from one intermediate segment rail can only flow into the drive coil connected to it, and to prevent the current from flowing from one intermediate segment rail into another drive coil or intermediate segment rail. At the same time, the insulated rails also constrain the armature sliding position.

[0034] The insulated rail is made of insulating material and cannot conduct current. When the armature is positioned between the positive rail and the insulated rail, current from the positive rail cannot flow into the insulated rail or the drive coil through the armature. In this case, the insulated rail acts as a circuit breaker. The position of the insulated rail is designed so that when the armature is in this position, no current flows through the drive coil, or only a small amount of current flows, significantly reducing the magnetic field in the drive coil. This, in turn, reduces the electromagnetic force generated by the drive coil, avoiding or minimizing the influence of the drive coil's electromagnetic force on the armature's movement.

[0035] For a reluctance coil transmitter, when the ferromagnetic armature is located outside the drive coil, it experiences an inward electromagnetic force, pulling the armature along its axis towards the center of the coil. When the axial center section of the armature coincides with the axial center section of the drive coil, the electromagnetic force is zero. After the armature passes the center section, it experiences a backward electromagnetic force, which pulls the armature backward, reducing its speed. This invention provides a segmented track structure, allowing the armature to act as a conductor during its initial movement, connecting the positive track to the coil, enabling the coil to generate a magnetic field that drives the armature forward. After the armature passes the coil's center section, the track is cut off, meaning the armature no longer connects the positive track to the coil, thus eliminating the reverse electromagnetic force. This transmitter ensures that the reluctance coil transmitter only exerts a forward pulling force on the armature, without generating backward pulling forces, effectively improving armature speed and electromagnetic emission efficiency.

[0036] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0037] Example

[0038] The segmented track and coil combined position-disconnect type transmitter structure proposed in this invention is as follows: Figure 1 As shown, Figure 1 The positive electrode track 1 is a complete conductor, serving to conduct current and constrain the armature's motion. The drive coil 2 is made of wire wound into multiple turns. Figure 1 The drive coil 2 consists of five individual coils arranged in a row. In practical applications, the number of drive coils 2 is determined by the usage requirements; it can be one drive coil or multiple drive coils. The intermediate segment rail 4 is opposite to the positive rail 1. Because the magnetic field inside the drive coil 2 is stronger, both the intermediate segment rail 4 and the positive rail 1 are placed inside the drive coil 2. In practical applications, the intermediate segment rail 4 and the positive rail 1 are placed outside the drive coil 2 without affecting its function. The insulating rail 5 is located between the multiple intermediate segment rails 4 and is used to break the circuit. The current in the positive rail 1 flows into the drive coil 2 sequentially. The position of the insulating rail 5 can avoid or reduce the current in the drive coil 2, preventing the drive coil 2 from forming a reverse electromagnetic force in the armature. The coil negative bus 6 is connected at one end to the drive coil 2 and at the other end to the negative rail 3, used to conduct the current in the drive coil 2 to the negative rail 3. The positive rail 1 and the negative rail 3 are connected to an external power supply.

[0039] like Figure 2As shown, the intermediate segmented track 4 is connected to the positive busbar 7 of the coil, the positive busbar 7 is connected to one end of the drive coil 2, and the other end of the drive coil 2 is connected to the negative busbar 6 of the coil. Current can flow from the intermediate segmented track 4 into the positive busbar 7 of the coil, and then into the drive coil 2 and the negative busbar 6 of the coil. The intermediate segmented track 4 is located at one end of the drive coil 2, and its length extending into the drive coil 2 is less than the length of the drive coil 2.

[0040] like Figure 3 As shown, the length of the intermediate segment track 4 extending into the drive coil does not exceed the length of the drive coil 2. (Combined with...) Figure 2 and Figure 3 One end of the intermediate segment track 4 extends beyond one end face of the drive coil 2, but does not extend beyond the other end face of the drive coil 2. The empty space between one intermediate segment track 4 and another intermediate segment track 4 is connected by an insulated track 5.

[0041] like Figure 4 As shown, the positive track 1 and the drive coil 2 are not in direct contact. To fix the positions of the conductors such as the positive track 1, negative track 3, intermediate segment track 4, and drive coil 2, insulating material can be used to connect the conductors, thus fixing them in the designed positions. Alternatively, potting compound can be used to fix the conductors. There are many other methods of fixing, which are not within the scope of this invention.

[0042] like Figure 5 As shown, the armature 8 is cylindrical in shape and made of a metallic conductor or a ferromagnetic material. Located between the positive track 1 and the intermediate segment track 4, current can flow from the positive track 1 into the armature 8, then into the intermediate segment track 4, and finally into the drive coil 2. When there is current in the drive coil 2, it generates a strong magnetic field. This strong magnetic field can induce a current in the armature 8, and the interaction between the strong magnetic field and the induced current will generate an electromagnetic force that drives the armature 8 forward. Alternatively, if the armature 8 is made of a ferromagnetic material, the strong magnetic field generated by the drive coil 2 can attract the armature 8 to move forward. When the armature 8 moves to the position of the insulating track 5, the current in the positive track 1 can no longer flow into the intermediate segment track 4 through the armature 8.

[0043] This invention relies on a simple track-like structure and the sliding electrical contact of the armature to conduct current. When the armature is in a suitable acceleration phase, the coil is connected to the power supply through the armature, track, and power source, allowing current to flow into the coil and forming a strong magnetic field to launch the armature. When the armature is in an unsuitable position, the conductor track is replaced with insulating material, preventing current from flowing directly into the coil or allowing current to flow through a bypass, thereby reducing the electromagnetic field formed in the coil and avoiding adverse effects on the armature. This method directly relies on the position distribution of the track conductors to conduct the circuit without requiring additional sensors to detect the armature position, thus reducing the system's requirements for switching control. Simultaneously, the coil only conducts when it is favorable for launch, improving launch efficiency and enabling the structure of this invention to launch at higher speeds.

[0044] The above description is only a preferred embodiment of the present invention. It should be noted that those skilled in the art can make several improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A segmented track and coil integrated position break type transmitter, characterized by, The application relates to a motor, which comprises a positive pole track (1), a driving coil (2), a negative pole track (3), an intermediate segmented track (4), an insulating track (5), a coil negative pole bus (6), a coil positive pole bus (7) and an armature (8); one side surface of the armature (8) is connected with the positive pole track (1), and the other side surface of the armature (8) is connected with the intermediate segmented track (4), so that current can flow from the positive pole track (1) into the intermediate segmented track (4) through the armature (8); after flowing into the intermediate segmented track (4), the current flows into the driving coil (2) through the coil positive pole bus (7), flows into the coil negative pole bus (6) through the driving coil (2), is connected with the negative pole track (3) through the coil negative pole bus (6) and flows into the negative pole track (3) through the coil negative pole bus (6); the driving coil (2) is hollow in the middle, so that the armature (8) can move axially along the driving coil (2); the insulating track (5) is used to connect the free positions between adjacent intermediate segmented tracks, and the insulating track (5) is made of insulating material.

2. The segmented track and coil combined position break type launcher according to claim 1, wherein, The material of the positive pole track (1), the armature (8) and the intermediate segmented track (4) is metal conductive material.

3. The segmented track and coil combined position break type launcher according to claim 1, wherein, The armature (8) is made of ferromagnetic material.

4. The segmented track and coil combined position break type launcher according to claim 1, wherein, The material of the driving coil (2), the negative pole track (3), the coil negative pole bus (6) and the coil positive pole bus (7) is metal conductive material.

5. The segmented track and coil combined position break type launcher according to claim 1, wherein, The armature (8) is in contact with the positive pole track (1) and the intermediate segmented track (4) and can slide on the surfaces of the positive pole track (1) and the intermediate segmented track (4).

6. The segmented track and coil combined position break type launcher according to claim 1, wherein, The conductive loop section of the intermediate segmented track (4) is disconnected in the middle of the driving coil (2).

7. The segmented track and coil combined position break type launcher according to claim 6, wherein, The intermediate segmented track (4) and the positive pole track (1) are located in the driving coil (2) simultaneously; or the intermediate segmented track (4) and the positive pole track (1) are located outside the driving coil (2) simultaneously.

8. The segmented track and coil combined position break type launcher according to claim 6, wherein, The intermediate segmented track (4) is located at one end of the driving coil (2), and the length of the intermediate segmented track (4) extending into the driving coil (2) is less than the length of the driving coil (2).

9. The segmented track and coil combined position break type launcher according to claim 1, wherein, The positive pole track (1) is connected with the positive pole of an external power supply, and the negative pole track (3) is connected with the negative pole of the external power supply; or the positive pole track (1) is connected with the negative pole of the external power supply, and the negative pole track (3) is connected with the positive pole of the external power supply.

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